It seems definitely to be "fullmoon" again this week.......
Your problem could have several reasons. An out-of-date Java installation, a corruption of the preference folder, or a too agressive Virus/Spyware program corrupting the file while being downloaded.
But I must admitt I don't want to put much effort in helping you, because your attitude towards the GNUTELLA FORUMS (which by the way is in no way associated with LIMEWIRE LLC.) is quite an "old" one seen here every so often; so I'm sorry as well......
And as for booting LW from your system,......do as you please.....